CN109252778A - A kind of highly reliable driving device of space camera thermal protection door - Google Patents
A kind of highly reliable driving device of space camera thermal protection door Download PDFInfo
- Publication number
- CN109252778A CN109252778A CN201810996794.XA CN201810996794A CN109252778A CN 109252778 A CN109252778 A CN 109252778A CN 201810996794 A CN201810996794 A CN 201810996794A CN 109252778 A CN109252778 A CN 109252778A
- Authority
- CN
- China
- Prior art keywords
- thermal protection
- protection door
- backup
- reduction unit
- gear reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims description 35
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/52—Protection, safety or emergency devices; Survival aids
- B64G1/58—Thermal protection, e.g. heat shields
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Critical Care (AREA)
- Emergency Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a kind of highly reliable driving devices of space camera thermal protection door, the thermal protection door rotary shaft is installed on the outer surface of drive end sleeve and Partner sleeve, main part motor of the invention is connected with backup motor by diaphragm coupling, the redundancy backup of motor is realized in the case where being not necessarily to switching mechanism, it is not required to lubricate using diaphragm coupling simultaneously, high reliablity, long service life, it is axial for rotary shaft caused by support construction thermal deformation adaptable with angular relative displacement, Partner biserial deep groove ball bearing compensates thermal protection door rotary shaft using travelling supporting way because length caused by thermal deformation changes, biserial deep groove ball bearing inner ring releases the rotary freedom in 3 directions of Partner by installing plain radial bearing, the phenomenon that avoiding bearing clamping stagnation caused by the thermal deformation because of driving device support construction.
Description
Technical field
The present invention relates to a kind of thermal protection door drives applied to space flight optical remote sensor, belong to aerospace optical remote sensing
Device technical field.
Background technique
Thermal protection door and its driving device, in occupation of critical role, are space optical remote sensor developments in Space Remote Sensors
Key device in the process.
Thermal protection door is installed on space camera and there has been extensive application in foreign country.As Hubble uses thermal protection
Door protects mirror surface and instrument sensitive inside telescope not by the damage of the intense lights such as sunlight and the shock of space debris.
The commercial satellite GeoEye series etc. that the U.S. provides sub-meter grade resolution ratio has used thermal protection door to guarantee the heat of space camera
Stability.
The driving device of thermal protection door drives thermal protection door to rotate around drive shaft by drive shaft positive and negative rotation, and then realizes heat
The unlatching and closure of protective door.Since thermal protection door needs frequently to open and be closed in space camera in-orbit period, drive
Dynamic device, which generally requires, carries out redundancy backup design, to improve the reliability of thermal protection door work.But the master of driving device motor
Backup switching, generally requires to be achieved by switching construction.Thermal protection door is typically mounted at space camera light inlet simultaneously,
Temperature environment is severe at the position, causes the support construction thermal deformation of driving device larger, easily causes the clamping stagnation of driving shafting
Phenomenon.
Summary of the invention
Technology of the invention solves the problems, such as: in order to overcome the deficiencies of the prior art, the present invention provides a kind of space cameras
The highly reliable driving device of thermal protection door is realized on the basis of realizing that thermal protection door is opened with this basic function is closed
The switching of master backup motor in the case where without switching mechanism, while avoiding axis caused by the thermal deformation because of driving device support construction
Hold catching phenomenon.
The technical solution of the invention is as follows:
A kind of highly reliable driving device of space camera thermal protection door, including drive end component, Partner component, thermal protection
Door rotary shaft, drive end support plate and Partner support plate,
Drive end component includes main part stepper motor, backup stepper motor, main part gear reduction unit, backup The gear deceleration
Device, diaphragm coupling and drive end sleeve,
Main part stepper motor and main part gear reduction unit are connected to form main part motor reducer assembly, backup stepper motor
It is connected to form backup motor reducer assembly with backup gear reduction unit, main part gear reduction unit output shaft subtracts with backup gear
Fast device output shaft is connected by diaphragm coupling, and drive end sleeve is mounted on the flange face of backup gear reduction unit, main part tooth
Wheel decelerator with drive end support plate by being connected.
Partner component includes Partner sleeve, biserial deep groove ball bearing, swivel nut, plain radial bearing, oscillating bearing spiral shell
Set, screw rod, flange swivel nut,
Biserial deep groove ball bearing outer ring passes through spiral shell by the shoulder block positioning on Partner sleeve, biserial deep groove ball bearing inner ring
Cover the shoulder block positioning on outer surface.
Plain radial bearing outer ring screws in swivel nut by the shoulder block positioning on swivel nut inner surface, then with oscillating bearing swivel nut
Screw threads for fastening；Plain radial bearing inner ring is positioned by the shoulder block on screw rod, then tight with the external screw thread that flange swivel nut screws in screw rod
Gu flange swivel nut is by being installed in Partner support plate.
Main part gear reduction unit and backup gear reduction unit are planetary reducer.
Thermal protection door rotary shaft is installed on the outer surface of drive end sleeve and Partner sleeve.
Partner component further includes end cap, race gasket, and biserial deep groove ball bearing outer ring passes through the gear on Partner sleeve
After shoulder positioning, fastened by end cap, and race gasket is installed between end cap and outer ring.
Partner component further includes circlip and inner ring gasket, and biserial deep groove ball bearing inner ring passes through on swivel nut outer surface
Shoulder block positioning after, fastened by circlip, and inner ring gasket is installed between circlip and inner ring.
After the cable of backup stepper motor is fixed in the rotary shaft of thermal protection door by silicon rubber, by going out for pitch
String holes is pierced by.
When main part stepper motor rotary work, backup stepper motor leads to latching force electric current, and main part gear reduction unit passes through film
Piece shaft coupling drives backup motor reducer assembly and thermal protection door rotary shaft common rotation.
When backup stepper motor rotary work, main part stepper motor leads to latching force electric current, backs up the output of gear reduction unit
Axis backs up the shell of gear reduction unit as rotor, drives the rotation of thermal protection door rotary shaft as stator.
The invention has the advantages that:
(1) thermal protection door drive of the invention by main part stepper motor and its retarder and backup stepper motor and its
Retarder is connected by diaphragm coupling, the redundancy backup of motor is realized, without switching mechanism when master backup motor switches；Simultaneously
It is not required to lubricate using diaphragm coupling, high reliablity, long service life, for the axial direction of rotary shaft caused by support construction thermal deformation
It is adaptable with angular relative displacement；
(2) the biserial deep groove ball bearing of Partner component of the present invention compensates the rotation of thermal protection door using travelling supporting way
Axis changes because of length caused by thermal deformation, and biserial deep groove ball bearing inner ring releases Partner 3 by installation plain radial bearing
The rotary freedom in a direction avoids biserial deep groove ball bearing clamping stagnation caused by the thermal deformation because of driving device support construction
Phenomenon.
Detailed description of the invention
Fig. 1 is the overall three-dimensional view of the driving device of thermal protection door of the present invention；
Fig. 2 is the overall cross-sectional view of the driving device of thermal protection door of the present invention；
Fig. 3 is the Partner assemble cross-section of the driving device of thermal protection door of the present invention；
Fig. 4 is the A direction view of Fig. 3.
Specific embodiment
Present invention will now be described in detail with reference to the accompanying drawings..
As shown in Figure 1 and Figure 2, a kind of space camera thermal protection door drive of the invention is connected by way of bonding
Thermal protection door 1, driving device include drive end component 2, Partner component 3, rotary shaft 4, drive end support plate 5 and Partner branch
Fagging 6.
The drive end component 2 includes two stepper motors (main part stepper motor 21 and backup stepper motor 22), 2 teeth
Wheel decelerator (main part gear reduction unit 23 and backup gear reduction unit 24), diaphragm coupling 25 and drive end sleeve 26.Main part
Gear reduction unit 23 and backup gear reduction unit 24 select planetary reducer.
Main part stepper motor 21 is connected to form main part motor reducer assembly with main part gear reduction unit 23.Backup stepping
Motor 22 and backup gear reduction unit 24 are connected to form backup motor reducer assembly.Main 23 output shaft of part gear reduction unit with
24 output shaft of backup gear reduction unit is connected by diaphragm coupling 25.Drive end sleeve 26 is mounted on backup gear by screw
On the flange face of retarder 24.Main part gear reduction unit 23 is connected by screw with drive end support plate 5.
As shown in Figure 3, Figure 4, the Partner component 3 includes Partner sleeve 301, biserial deep groove ball bearing 302, elasticity
Retaining ring 303, end cap 304, race gasket 305, inner ring gasket 306, swivel nut 307, plain radial bearing 308, oscillating bearing swivel nut
309, screw rod 310, flange swivel nut 311 and adjusting gasket 312.
302 outer ring of biserial deep groove ball bearing is fastened by the shoulder block positioning on Partner sleeve 301, then with end cap 304, and
Race gasket 305 is installed between end cap 304 and outer ring.302 inner ring of biserial deep groove ball bearing passes through on 307 outer surface of swivel nut
Shoulder block positioning, then fastened with circlip 303, and inner ring gasket 306 is installed between circlip 303 and inner ring.Partner
Sleeve 301 is connected with end cap 304 by mounting screw on flange face.
308 outer ring of plain radial bearing is by the shoulder block positioning on 307 inner surface of swivel nut, then with oscillating bearing swivel nut 309
Screw in the fastening of 307 internal screw thread of swivel nut.308 inner ring of plain radial bearing is by the shoulder block positioning on screw rod 310, then with flange swivel nut
311 screw in the external screw thread fastening of screw rod 310.Flange swivel nut 311 is installed in Partner support plate 6 by screw, and in flange
Installation and adjustment gasket 312 between swivel nut 311 and Partner support plate 6.
Thermal protection door rotary shaft 4 is installed on the appearance of drive end sleeve 26 and Partner sleeve 301 by cementing form
Face.
After the cable of backup motor 22 is fixed in thermal protection door rotary shaft 4 by silicon rubber, by going out for 310 center of screw rod
String holes is pierced by.
Working principle of the present invention are as follows: when main 21 rotary work of part stepper motor, backup stepper motor 22 leads to latching force electric current,
Main part gear reduction unit 23 drives backup motor reducer assembly and thermal protection door rotary shaft 4 common by diaphragm coupling 25
Rotation.When backup 22 rotary work of stepper motor, main part stepper motor 21 leads to latching force electric current, backup gear reduction unit 24 it is defeated
Shaft drives thermal protection door rotary shaft 4 to rotate as stator, the shell of backup gear reduction unit 24 as rotor.
The present invention can apply the thermal protection door drive area in the space camera of Large diameter, adapt to diameter 0.5m or more
4m thermal protection door below realizes on the basis of realizing that thermal protection door is opened with this basic function is closed in no switching
The redundancy backup of motor in the case where mechanism, simultaneously for the thermal deformation of thermal protection door rotary shaft and driving device support construction
With extremely strong adaptability, the reliability of thermal protection door drive is substantially increased, has adapted to the spy that spacecraft cannot be safeguarded
Point.
Structure material of the invention mitigates weight as far as possible under the premise of guaranteeing mechanical performance, drive end sleeve, passive
End cap cylinder, end cap, thermal protection door pivot select aluminium alloy, race gasket, inner ring gasket, ball bearing swivel nut, oscillating bearing swivel nut,
Screw rod, flange swivel nut, adjusting gasket select titanium alloy.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (10)
1. a kind of highly reliable driving device of space camera thermal protection door, which is characterized in that including drive end component (2), passively
Component (3), thermal protection door rotary shaft (4), drive end support plate (5) and Partner support plate (6) are held,
Drive end component (2) includes main part stepper motor (21), backup stepper motor (22), main part gear reduction unit (23), standby
Part gear reduction unit (24), diaphragm coupling (25) and drive end sleeve (26),
Main part stepper motor (21) and main part gear reduction unit (23) are connected to form main part motor reducer assembly, backup stepping
Motor (22) and backup gear reduction unit (24) are connected to form backup motor reducer assembly, and main part gear reduction unit (23) is defeated
Shaft is connected with backup gear reduction unit (24) output shaft by diaphragm coupling (25), and drive end sleeve (26) is mounted on backup
On the flange face of gear reduction unit (24), main part gear reduction unit (23) with drive end support plate (5) by being connected.
2. a kind of highly reliable driving device of space camera thermal protection door according to claim 1, it is characterised in that: passive
End component (3) include Partner sleeve (301), biserial deep groove ball bearing (302), swivel nut (307), plain radial bearing (308),
Oscillating bearing swivel nut (309), screw rod (310), flange swivel nut (311),
Biserial deep groove ball bearing (302) outer ring passes through the shoulder block positioning on Partner sleeve (301), biserial deep groove ball bearing
(302) inner ring passes through the shoulder block positioning on swivel nut (307) outer surface.
3. a kind of highly reliable driving device of space camera thermal protection door according to claim 2, it is characterised in that: centripetal
Oscillating bearing (308) outer ring screws in spiral shell by the shoulder block positioning on swivel nut (307) inner surface, then with oscillating bearing swivel nut (309)
Cover the fastening of (307) internal screw thread；Plain radial bearing (308) inner ring is by the shoulder block positioning on screw rod (310), then with flange swivel nut
(311) the external screw thread fastening of screw rod (310) is screwed in, flange swivel nut (311) is by being installed on Partner support plate (6).
4. a kind of highly reliable driving device of space camera thermal protection door according to claim 1, it is characterised in that: main part
Gear reduction unit (23) and backup gear reduction unit (24) are planetary reducer.
5. a kind of highly reliable driving device of space camera thermal protection door according to claim 2, it is characterised in that: heat is anti-
Shield door rotary shaft (4) is installed on the outer surface of drive end sleeve (26) and Partner sleeve (301).
6. a kind of highly reliable driving device of space camera thermal protection door according to claim 2, it is characterised in that: passive
End component (3) further includes end cap (304), race gasket (305), and biserial deep groove ball bearing (302) outer ring passes through Partner sleeve
(301) it after the shoulder block positioning on, is fastened by end cap (304), and race gasket is installed between end cap (304) and outer ring
(305)。
7. a kind of highly reliable driving device of space camera thermal protection door according to claim 2, it is characterised in that: passive
Holding component (3) further includes circlip (303) and inner ring gasket (306), and biserial deep groove ball bearing (302) inner ring passes through swivel nut
(307) it after the shoulder block positioning on outer surface, is fastened by circlip (303), and pacify between circlip (303) and inner ring
It fills inner ring gasket (306).
8. a kind of highly reliable driving device of space camera thermal protection door according to claim 2, it is characterised in that: backup
After the cable of stepper motor (22) is fixed in the rotary shaft of thermal protection door by silicon rubber, by the outlet at screw rod (310) center
Hole is pierced by.
9. a kind of highly reliable driving device of space camera thermal protection door according to claim 1, it is characterised in that: main part
When stepper motor (21) rotary work, backup stepper motor (22) leads to latching force electric current, and main part gear reduction unit (23) passes through film
Piece shaft coupling (25) drives backup motor reducer assembly and thermal protection door rotary shaft (4) common rotation.
10. a kind of highly reliable driving device of space camera thermal protection door according to claim 1, it is characterised in that: standby
When part stepper motor (22) rotary work, main part stepper motor (21) leads to latching force electric current, backup gear reduction unit (24) it is defeated
Shaft drives thermal protection door rotary shaft (4) rotation as rotor as stator, the shell of backup gear reduction unit (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996794.XA CN109252778B (en) | 2018-08-29 | 2018-08-29 | High-reliability driving device of space camera heat protection door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996794.XA CN109252778B (en) | 2018-08-29 | 2018-08-29 | High-reliability driving device of space camera heat protection door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109252778A true CN109252778A (en) | 2019-01-22 |
| CN109252778B CN109252778B (en) | 2020-05-12 |
Family
ID=65049663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810996794.XA Active CN109252778B (en) | 2018-08-29 | 2018-08-29 | High-reliability driving device of space camera heat protection door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109252778B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3833787C1 (en) * | 1988-10-05 | 1989-12-14 | Adronit-Werk Hermann Aderhold Gmbh & Co, 5802 Wetter, De | Device for electrically driving a controlled-access gate for people |
| US20080244977A1 (en) * | 2007-04-09 | 2008-10-09 | Chung Hsien Hsieh | Active brake release device driven by a second motor and attached to the exterior of a door controller |
| DE102012103638A1 (en) * | 2012-04-25 | 2013-10-31 | Reinhold Schulte | Fluidic vehicle door pivot drive for e.g. city bus, has coupling mechanism that converts axial position movement of position piston into pivoting movement of driving element, and safety device that is in backup position |
| CN103718433A (en) * | 2011-07-21 | 2014-04-09 | 佛吉亚汽车座椅公司 | Drive device with electric motor and reduction gear |
| CN204029989U (en) * | 2013-11-27 | 2014-12-17 | 上海宇航系统工程研究所 | A kind of integrated general satellite antenna directing mechanism driven unit |
-
2018
- 2018-08-29 CN CN201810996794.XA patent/CN109252778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3833787C1 (en) * | 1988-10-05 | 1989-12-14 | Adronit-Werk Hermann Aderhold Gmbh & Co, 5802 Wetter, De | Device for electrically driving a controlled-access gate for people |
| US20080244977A1 (en) * | 2007-04-09 | 2008-10-09 | Chung Hsien Hsieh | Active brake release device driven by a second motor and attached to the exterior of a door controller |
| CN103718433A (en) * | 2011-07-21 | 2014-04-09 | 佛吉亚汽车座椅公司 | Drive device with electric motor and reduction gear |
| DE102012103638A1 (en) * | 2012-04-25 | 2013-10-31 | Reinhold Schulte | Fluidic vehicle door pivot drive for e.g. city bus, has coupling mechanism that converts axial position movement of position piston into pivoting movement of driving element, and safety device that is in backup position |
| CN204029989U (en) * | 2013-11-27 | 2014-12-17 | 上海宇航系统工程研究所 | A kind of integrated general satellite antenna directing mechanism driven unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109252778B (en) | 2020-05-12 |
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